| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 8 |
0.4%
|
| 2 | Mild | 19 |
1%
|
| 3 | Moderate | 70 |
3.6%
|
| 4 | Severe | 617 |
31.5%
|
| 5 | Extreme | 1245 |
63.6%
|
| Sysmiss | 1979 |